# Space Marbles! vs Bullet Train!

The clearest difference is in-app purchases: Space Marbles! at none against Bullet Train!'s 10. Space Marbles! also leads on update cadence (daily vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Bullet Train! sells 10 one-off in-app purchases. Space Marbles! asks for nothing beyond the download.

Space Marbles! ships an update daily, Bullet Train! weekly. The most recent releases landed on March 4, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Space Marbles! | Bullet Train! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (770 ratings)](https://appshunter.io/ios/app/bullet-train/id6450603663/reviews)** |
| Number of ratings | — | **770** |
| Positive reviews | — | 11.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Daily** | Weekly |
| Monetization | — | Free with in-app purchases |
| Size | 80 MB | 177 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Ahmet Ikbal Adlig](https://appshunter.io/developer/1589838934) | [Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi](https://appshunter.io/developer/1225221447) |

## What reviewers say

### Space Marbles!

[App page](https://appshunter.io/ios/app/space-marbles/id6443820868)

**In-app purchases:** none


### Bullet Train!

[App page](https://appshunter.io/ios/app/bullet-train/id6450603663)

Engage in a thrilling arcade experience where you upgrade your ammunition to inflict maximum damage on enemies. Earn coins by destroying foes to enhance your bullet belt and firing speed. Become a master of destruction with increasingly powerful projectiles.

**Highlights:** Extend bullet belt, Upgrade ammo, Inflict more damage, Destroy enemies, Increase firing speed, Earn coins

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Drone | $1.99 | one-time |
| Captain | $2.99 | one-time |
| Sergeant | $2.99 | one-time |
| Flamethrower | $2.99 | one-time |
| Grenade | $2.99 | one-time |
| No Ads | $3.99 | one-time |
| Spy | $3.99 | one-time |
| Air strike | $3.99 | one-time |
| President | $4.99 | one-time |
| Ammo pack | $4.99 | one-time |

**What reviewers like**

- 👍 Good time waster
- 🚀 Pretty good game

**What reviewers complain about**

- 🐛 Bug that crashes game
- 🐛 Game freeze
- 🔍 Forced ads
- 🔍 Terrible ad push
- 🔍 Ads every minute

**Reported bugs**

- Missions trophy crashes the game
- Game freezes when clicking on missions
- Paid for no ads but still have ads
- Free bonus ad clock not working properly

**Requested features**

- Need more guns and harder enemies
- Fix the free bonus ad clock


## Frequently asked questions

### Is Space Marbles! free?

Space Marbles! is free to download, with no in-app purchases.

### Is Bullet Train! free?

Bullet Train! is free to download, with in-app purchases available.

### Do Space Marbles! or Bullet Train! have ads?

Both Space Marbles! and Bullet Train! show ads.

### Which is updated more often, Space Marbles! or Bullet Train!?

Space Marbles! ships an update daily, and Bullet Train! weekly. Most recently, Space Marbles! was updated on March 4, 2026 and Bullet Train! on September 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*